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1)  chrome and aluminium tanning agent
铬铝鞣剂
2)  chrome and aluminium tanning
铬铝鞣制
3)  chrome-alum tanning
铬铝鞣
4)  chrome tanning agent
铬鞣剂
1.
The Cr(Ⅵ) content in chrome tanning agents was determined by the method of alkaline digestion,which could effectively restrain the oxidation and reduction between Cr(Ⅲ)and Cr(Ⅵ).
采用碱式消解法测定铬鞣剂中的Cr(Ⅵ)含量。
2.
Using H2SO4 as acidulant,chromic sulfate with high purity was obtained by crystallization,which was applied to leather industry as chrome tanning agent.
将电镀废水中的六价铬还原成Cr(III),用化学沉淀法和絮凝法将其转化为Cr(OH)3沉淀,通过硫酸酸化,结晶为高纯硫酸铬,作为皮革工业的铬鞣剂。
3.
The chrome tanning agent was prepared with some wastewater produced from perfume factories contained high concentration organic acid as reducing agent and masking agent by which part of glucose was replaced.
利用香料厂排放的高浓度有机酸废水部分代替葡萄糖作还原剂和蒙囿剂,制备铬鞣剂,并对制备出的鞣剂的理化性能及鞣制性能,进行综合分析。
5)  chrome-free tanning agent
无铬鞣剂
1.
A series of novel chrome-free tanning agents were synthesized with erea,glyoxal,glycine and melamine.
合成了6种新型的同系列的无铬鞣剂。
2.
A series of novel chrome-free tanning agents were synthesized from urea,glyoxal,glycine and melamine.
合成了六种新型的同系列的无铬鞣剂;用红外光谱(FT-IR)分别证实了它们带有的官能团的存在;并采用氨基酸分析来初步研究这些无铬鞣剂的鞣制机理。
6)  Cr-Fe tanning agent
铬铁鞣剂
补充资料:铝鞣剂
分子式:
CAS号:

性质:铝明矾鞣革是一种古老的鞣法,一般向铝明矾或硫酸铝溶液中加入一定量的纯碱而制成碱式硫酸铝鞣液来鞣革。铝鞣液的最适碱度为50%~60%,但是硫酸铝的碱度超过22%时,就会产生氢氧化铝沉淀而失去鞣性。需要在铝鞣剂中加入适量的隐匿(蒙囿)剂柠檬酸盐,才能使其碱度提高到50%以上。碱式氯化铝也是一种很好的铝鞣剂,化学通式为[Al2(OH)nCl6-n]m,式中m≤10,n=1~4。它是一种无机高分子,不用加隐匿剂而碱度可高达66%,也不会有沉淀。铝鞣剂本身无色,适于鞣制白色革及裘皮。更多作为轻革的复鞣剂,使皮革的粒面细致,纤维紧密,耐磨性好,绒面革的绒毛紧实,色泽鲜艳。

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